The survival rate and conservationrate of planting can be effectively increased by using these measures reasonably.
通过针对盐碱地区公路绿化采取综合栽植技术措施，可有效提高绿化栽植的成活率和保存率。
2
According to the International Union for Conservation of Nature (IUCN), the rate is between 1, 000 and 10, 000 times higher than the natural rate of extinction. This is largely due to human activity.
It was introduced by an American charity called Conservation International, which realised the going rate for logging concessions was often so low that it could afford to outbid the foresters.